The explanation for the correct response to the previous question involves the two facts that red light has a wavelength that is
A) longer than that of blue light, and it travels slower in glass than blue light.
B) longer than that of blue light, and it travels faster in glass than blue light.
C) shorter than that of blue light, and it travels faster in glass than blue light.
D) shorter than that of blue light, and it travels slower in glass than blue light.

Question

Quizplus · Accepted Answer

Red light has a longer wavelength than blue light, and because of the way light's speed in a medium depends on its wavelength, red light actually travels faster in glass than blue light. This is due to the dispersion of light, where light of different wavelengths travels at different speeds through a medium.

The Explanation for the Correct Response to the Previous Question